有理真分式分解为部分分式导数法

对有理真分式当分母具有n重实根时分解为部分分式的方法进行研究,并给出两个在有理函数积分中具有实用价值的推论。     

在读女研究生怀孕问题的分析与思考——以“理性选择理论”为视角

本文在对141份样本统计分析的基础上，揭示了在读女研究生怀孕的动因及在校研究生对此类事情的不同认识与态度，并进一步从理性选择理论的视角出发表达了笔者对此问题的思考与看法。     

中国古代均平文化论纲

在中国古代社会,平均观念渗透在中国传统文化的各个思想领域,是各种政治思想、社会思想、伦理思想乃至经济思想的重要文化支点。均平文化的基本内涵,包括政治平均、社会平均、经济平均、均平之德等几个最基本的方面。均平作为一种文化,它的思想价值在于追求社会的和谐与均衡。这种文化,还被赋予了天地自然之德的自然属性,是人对自然德性的效法,因此有着天经地义的正当性。     

浅谈90后职业学校学生现状及教育管理

本文结合90后职业学校的学生特征及原因分析,从班级管理和学生个性发展等方面提出,要在课堂管理、师生互动等上建立新型的师生关系成为职校学生教育管理的发展方向和有效途径。     

Learning in the Allais paradox

Whereas both the Allais paradox, the first empirical challenge of the classical rationality assumptions, and learning have been the focus of many experimental investigations, no experimental study exists today into learning in the pure context of the Allais paradox. This paper presents such a study. We find that choices converge to expected utility maximization if subjects are given the opportunity to learn by both thought and experience, but less so when they learn by thought only. To the extent that genuine preferences should be measured with proper learning and incentives, our study gives the first pure demonstration that irrationalities such as in the Allais paradox are less pronounced than often thought. Paul Anand and Stefan Trautmann made helpful comments.     

The Absolute Difference Law For Expectations

We revisit the addition law for expectations and present a sibling law: the absolute law for expectations. We show that these two laws and their corresponding laws for probabilities can be reconciled under a single framework. As an application, we use the absolute law for expectations to calculate the mean absolute deviation. Finally, we remark on a hidden point in a related article previously published on these pages; this will help readers to avoid a potential pitfall.     

Another Remark on the Alternative Expectation Formula

Students in a calculus-based probability course will often see the expectation formula for nonnegative continuous random variables in terms of the survival function. This alternative expectation formula has a wide spectrum of applications. It is natural to ask whether there is a multivariate version of this formula. This note gives an affirmative answer by establishing such a formula using two different approaches. The two approaches employed in this note correspond to the two approaches for the univariate case. Supplementary materials for this article are available online.     

Lottomania and other anomalies in the market for lotto

This research is concerned with the determination of the demand for “lotto” in Israel. While an important focus of our research is upon the effects on the demand for lotto of ticket pricing and jackpot announcements, we also investigate several empirical phenomena that are apparently inconsistent with expected utility theory. These include an effect we call “lottomania” which is induced by rollover, and “prize fatigue” when the jackpot does not increase. Another aberration from expected utility theory is that the underlying odds of winning have no measurable effect on sales.     

Improving Africa's Roads: Modelling Infrastructure Investment and Its Effect on Sectoral Production Behaviour

Given the scarce resources for public investment in developing countries, policy analysis should include a detailed perspective on the effects of infrastructure. This article develops a modelling framework for analysing the effects of improved road infrastructure on the economy of African countries. The theoretical framework is tested empirically and used for simulations in a Computable General Equilibrium (CGE) model, and the effects on production and welfare are analysed. The model also serves to investigate the effect of roads on the economic participation of rural households.     

Exponentiality test based on Renyi distance between equilibrium distributions

ABSTRACT

On the basis of Csiszar's φ-divergence discrimination information, we propose a measure of discrepancy between equilibriums associated with two distributions. Proving that a distribution can be characterized by associated equilibrium distribution, a Renyi distance of the equilibrium distributions is constructed that made us to propose an EDF-based goodness-of-fit test for exponential distribution. For comparing the performance of the proposed test, some well-known EDF-based tests and some entropy-based tests are considered. Based on the simulation results, the proposed test has better powers than those of competing entropy-based tests for the alternatives with decreasing hazard rate function. The use of the proposed test is evaluated in an illustrative example.